Patents
US 11015979 B2: Low cost and high performance bolometer circuitry and methods
- Granted
- 2021-05-25
- Filed
- 2019-08-16 application 16542673
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A bolometer circuit may include an active bolometer configured to receive external infrared (IR) radiation. The bolometer circuit may be configured to reduce power consumption at high temperatures. In particular, the bolometer circuit may include additional resistors provided in the resistive loads for bolometer conduction paths to limit power at high temperatures. In some embodiments, the bias (e.g., a voltage level) to the gates of transistors in the resistive loads for the bolometer conduction paths may be adjusted based on temperature to limit power and/or current at high temperatures. In bolometer circuits with a feedback resistor provided across an amplifier to configure a feedback amplifier, a circuit with adjustable amplifier power may be provided to save power. In some embodiments, a bolometer circuits may be provided with reduced gains to allow for very hot scenes to be imaged without railing the output.
Source: PVGPATDIS, file of 2026-04-10 (ipg210525.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| FLIR Systems, Inc. 370 patents | US company or organization | Wilsonville, OR | FLIR SYSTEMS INC Form D issuer EXACT high confidence: identical full name and state FLIR SYSTEMS INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Naseem Y. Aziz | Goleta, CA | 15 | PVGPATDIS, file of 2026-04-10 | |
| Brian B. Simolon | Lompoc, CA | 22 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01J | Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry | G01J5/24 | PVGPATDIS, file of 2026-04-10 |
| H04N | Pictorial communication, e.g. television | H04N25/671 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2021-11-24 | Merger Merger and change of name | FLIR SYSTEMS, INC. signed 2021-05-14 FIREWORK MERGER SUB II, LLC signed 2021-05-14 | TELEDYNE FLIR, LLC THOUSAND OAKS, CA | 58250/300 | PASDL, file of 2026-10-15 |
| 2020-02-21 | Assignment Assignment of assignor's interest | SIMOLON, BRIAN B. signed 2018-03-05 AZIZ, NASEEM Y. signed 2018-03-14 | FLIR SYSTEMS, INC. WILSONVILLE, OR | 51887/21 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.